Spring (March–May): Average 11.2–19.8°C, mild and comfortable climate, but with relatively high rainfall. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt.
Summer (June–August): Average 23.7–30.0°C, hot and humid, with rainfall concentrated in July. Common activities: Swimming, mountain climbing (sun protection and rain gear are recommended). Recommended clothing: Light and breathable clothing, sunscreen, rain gear.
Autumn (September–November): Average 19.7–14.4°C, pleasant climate, with reduced rainfall. Common activities: Maple leaf viewing, outdoor hiking. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 7.3–6.7°C, cold and dry, with less rainfall. Common activities: Hot spring experience, skiing (depending on snow conditions). Recommended clothing: Warm jacket, sweater, scarf, gloves.
Omachi climatological average
Annual average temperature: approx. 17.6°C / Annual rainfall: approx. 1529 mm / Summer humidity: 70%–80% / Rainiest month: July
Omachi monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.8°C
33.7
February
6.7°C
73.7
March
11.2°C
115
April
16.5°C
193.3
May
19.8°C
165.7
June
23.7°C
217
July
28.3°C
308
August
30°C
83.7
September
27.3°C
128.3
October
19.7°C
72
November
14.4°C
111
December
7.3°C
28.3
Omachi weather for the next seven days
2/4
Wednesday
Partly Cloudy
11.2°C/0.7°C
2/5
Thursday
Cloudy
11.7°C/3.3°C
2/6
Friday
Patchy rain nearby
12.8°C/5.5°C
2/7
Saturday
Patchy rain nearby
8.5°C/2°C
2/8
Sunday
Blowing snow
1.5°C/-1.5°C
2/9
Monday
Partly Cloudy
6°C/-3.8°C
2/10
Tuesday
Overcast
8.7°C/-2.9°C
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